class SecuriedButtonClickListener implements ClickListener {

	private static final long serialVersionUID = 194416383513769075L;

	@Inject
	private Application myVaadinApplication;

	@Inject
	@Named("FB.appId")
	private String appId;

	@Inject
	@Named("FB.redirect")
	private String redirect;

	@Inject
	private Random random;

	@SecureAction
	public void buttonClick(ClickEvent event) {
	        myVaadinApplication.getMainWindow().addComponent(
				new Label("Thank you for clicking"));

		String target = "https://www.facebook.com/dialog/oauth?client_id="
				+ appId + "&redirect_uri=" + redirect + "&state="
				+ random.nextInt();
		myVaadinApplication.getMainWindow().open(new ExternalResource(target),
				"_top");
	}
}